1293940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2127

約数の個数: 24

約数和(自身を含む): 2806272

約数和(自身を除く): 1512332

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2087, 4174, 8348, 10435, 20870, 41740, 64697, 129394, 258788, 323485, 646970, 1293940]

約数ペア:

[(1, 1293940), (2, 646970), (4, 323485), (5, 258788), (10, 129394), (20, 64697), (31, 41740), (62, 20870), (124, 10435), (155, 8348), (310, 4174), (620, 2087)]